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Proceedings Paper

Layer oriented wavefront sensor for MAD on sky operations
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Paper Abstract

The Multiconjugate Adaptive optics Demonstrator (MAD) had successfully demonstrated on sky both Star Oriented (SO) and Layer Oriented (LO) multiconjugate adaptive optics techniques. While SO has been realized using 3 Shack-Hartmann wavefront sensors (WFS), we designed a multi-pyramid WFS for the LO. The MAD bench accommodates both WFSs and a selecting mirror allows choosing which sensor to use. In the LO approach up to 8 pyramids can be placed on as many reference stars and their light is co-added optically on two different CCDs conjugated at ground and to an high layer. In this paper we discuss LO commissioning phase and on sky operations.

Paper Details

Date Published: 15 July 2008
PDF: 12 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70155P (15 July 2008); doi: 10.1117/12.791780
Show Author Affiliations
C. Arcidiacono, INAF, Osservatorio Astronomico di Padova (Italy)
M. Lombini, INAF, Osservatorio Astrofisico di Bologna (Italy)
R. Ragazzoni, INAF, Osservatorio Astronomico di Padova (Italy)
J. Farinato, INAF, Osservatorio Astronomico di Padova (Italy)
E. Diolaiti, INAF, Osservatorio Astrofisico di Bologna (Italy)
A. Baruffolo, INAF, Osservatorio Astronomico di Padova (Italy)
P. Bagnara, INAF, Osservatorio Astronomico di Padova (Italy)
G. Gentile, INAF, Osservatorio Astronomico di Padova (Italy)
L. Schreiber, INAF, Osservatorio Astrofisico di Bologna (Italy)
E. Marchetti, European Southern Observatory (Germany)
J. Kolb, European Southern Observatory (Germany)
S. Tordo, European Southern Observatory (Germany)
R. Donaldson, European Southern Observatory (Germany)
C. Soenke, European Southern Observatory (Germany)
S. Oberti, European Southern Observatory (Germany)
E. Fedrigo, European Southern Observatory (Germany)
E. Vernet, European Southern Observatory (Germany)
N. Hubin, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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